Fully developed entropy optimized second order velocity slip MHD nanofluid flow with activation energy

•Here second order velocity slip flow by a rotating surface disk is considered.•Nonlinear mixed convection is accounted.•Slip mechanism of Buongiorno’s nanofluid model i.e., Brownian motion and thermophoretic diffusion is incorporated in the mathematical modeling.•Heat transport aspects are examined...

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Bibliographic Details
Published in:Computer methods and programs in biomedicine 2020-07, Vol.190, p.105362-105362, Article 105362
Main Authors: Abbas, S.Z., Khan, M. Ijaz, Kadry, S., Khan, W.A., Israr-Ur-Rehman, M., Waqas, M.
Format: Article
Language:English
Subjects:
Activation energy
Algorithms
Computer Simulation
Convection
Entropy
Entropy generation
Hydrodynamics
Magnetic Fields
Nanotechnology
Nonlinear mixed convection
Second order velocity slip
Thermal radiation
Viscous dissipation and Joule heating
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Summary:•Here second order velocity slip flow by a rotating surface disk is considered.•Nonlinear mixed convection is accounted.•Slip mechanism of Buongiorno’s nanofluid model i.e., Brownian motion and thermophoretic diffusion is incorporated in the mathematical modeling.•Heat transport aspects are examined via Joule heating, thermal radiation and dissipation.•Chemical reaction subject to activation energy is also considered. Hydromagnetic second order velocity slip flow of viscous material with nonlinear mixed convection towards a stretched rotating disk is numerically examined here. Important slip mechanism of Buongiorno’s nanofluid model i.e., Brownian motion and thermophoretic diffusion is incorporated in the mathematical modeling. Heat transport aspects are examined via Joule heating, thermal radiation and dissipation. Convective conditions at the stretchable surface of disk is implemented for the heat transport analysis. Chemical reaction subject to activation energy is also considered. Through appropriate transformations and shooting method the outcomes are computed and demonstrated graphically. The flow field, temperature, surface drag force, concentration and Nusselt number are deliberated subject to pertinent parameters. Total entropy rate is obtained. The outcomes show that magnetic field significantly affects the flow field as well as entropy rate.
ISSN:0169-2607
1872-7565
DOI:10.1016/j.cmpb.2020.105362